If the acceleration in question 8 is constant, what's the average velocity of the object described?

average velocity = initial velocity + 1/2 acceleration* time

Explanation:Q8 unavailable, but at constant acceleration a

if initial velocity is v1, final velocity v2 and average velocity (v1+v2)/2 and the time interval t,

v2 = v1 + at and average velocity = v1 + 1/2at

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.